This is twee, an equational theorem prover.

The version in this git repository is likely to be unstable! To install the latest stable version, run:

cabal install twee

If you have LLVM installed, you can get a slightly faster version by running:

cabal install twee -fllvm

If you really want the latest unstable version, run cabal install src/ . in this repository.

Afterwards, run twee nameofproblem.p. The problem should be in TPTP format (http://www.tptp.org). You can find a few examples in the tests directory. All axioms and conjectures must be equations, but you can freely use quantifiers. If it succeeds in proving your problem, twee will print a human-readable proof.

For the official manual, see http://nick8325.github.io/twee.